>Yet people who are not in this position are so quick to point out how simple it is - yet never can back up their claims with actual facts.
I don't know what actual facts you want from me. I don't have a study published in Nature or whatever that I can cite. I just have my experiences with my three kids (ages ranging from young to almost moving out) and the experiences of my friends, family, and colleagues that have kids.
I'd be happy to share my experiences, and what worked with my kids (and what didn't), but it's hard to believe someone wants a genuine conversation when they hit you with a "If your kid is taught to be responsible why would you need them?" off the top. (Or equate age verification laws to seat belt laws, like the other commenter).